use custom kebabcase function

lib/tags.js

@@ -1,7 +1,7 @@
 import fs from 'fs'
 import matter from 'gray-matter'
 import path from 'path'
-import kebabCase from 'just-kebab-case'
+import { kebabCase } from './utils'
 
 const root = process.cwd()
 

lib/utils.js

@@ -0,0 +1,6 @@
+export const kebabCase = (str) =>
+  str &&
+  str
+    .match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
+    .map((x) => x.toLowerCase())
+    .join('-')